Envelop.



No. 862,651. PATENTEDAUG. 6, 1907. H. 0. MURPHY.

ENVBLOP.

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No. 862,651. PATENTED AUG. 6, 1907. H. G. MURPHY.

ENVELOP.

APPLICATION FILED JUNE 26, 1900.

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PATENT OFFICE.

HARRY OLAUD MURPHY, OF MARENGO, INDIANA.

ENVELOP.

Application filed June 26,

To all whom it may concern:

Be it known that I, HARRY OLAUD MURPHY, a citizen of the United States,and a resident of Marengo, in the county of Crawford and State ofIndiana, have invented a new and Improved Envelop, of which thefollowing is a full, clear, and exact description.

This invention relates to improvements in envelops of the safety type,the object being to provide an envelop for the transmission of valuablematter through the mails, by express, or otherwise, and having a novelmeans for sealing, without employing adhesive; and which cannot befraudulently opened or tampered with without detection.

Other objects of the invention will appear in the general description.

I will describe an envelop embodying my invention, and then point outthe novel features in the appended claims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 shows in plan, and unfolded, an envelop embodying my invention;Fig. 2 is a perspective view of the envelop, illustrating it as partlyfolded; Fig. 3 shows the first stage of sealing; Fig. 4 shows the secondstage of sealing the envelop; Fig. 5 indicates the envelop as folded andsealed; and Fig. 6 is a longitudinal section of the sealed envelop.

It may be here stated that the envelop is formed of a single piece ofmaterial such for instance, as paper, or it may be made of thin asbestoswhich will protect the contents practically, from destruction by fire.

The envelop comprises a body or front portion 1 from which side flaps 2extend, and on one end is a sealing flap 3 while at the opposite end isa tongue 4. Each side flap 2, near its opposite edges is provided withirregular slits 5 which form tongues 6. The end flap 3 has formed in it,two sealing tongues 7, 8, the material at the base of these sealingtongues being so cut or slit that openings 9 are formed through whichthe tongue 4 may pass.

In the operation, the end flap 3 is first turned over on the contents ofthe envelop, then one of the side flaps is turned down upon the said endflapand the tongues 7, 8, pass though the slits 5, as clearly indicatedin Fig. 2. In passing the tongues or flaps through the slits, thetongues G will be turned outward and engaged against the inner sides ofthe sealing tongues, as clearly indicated at the left-hand end of Fig.2. After this, the opposite side flap is to be turned into position andthe seal- Speeification of Letters Patent.

Patented. Aug. 6, 1907.

1906. Serial No. 323,490.

5 ing tongues passed through the slits thereof and the tongues 6 of thelast folded side flap will engage at the outer sides of the sealingtongues, as indicated at the right-hand end of Fig. 3. These parts 6 notonly strengthen the general structure that is adjacent to the sealingtongues, but will serve somewhat as guides for directing the tongue 4through the openings 9, which completes the sealing operation so far asthe folding is concerned. Before passing the tongue 4 through the secondopening of the second sealing flap or tongue, the first one, that is thesealing flap or tongue adjacent to the butt of said tongue 4, is to befolded down upon the end flap 10 from which the tongue 4 extends, andsecured thereto by an eyelet 11; then after passing the free end of thetongue 4 through the opening in the 0pposite sealing tongue or flap, thetongue or flap is to be turned down and an eyelet 12 passed through thetongue or flap and through the two side flaps at one side of the tongue4 as indicated clearly in Fig. 5.

It will be noted that an envelop embodying my invention will beinexpensive to manufacture because the blank may be cut out by thesingle action of a die or machine. Further, it is exceedingly simple tomanipulate in sealing, and when sealed, as before stated, it cannot beopened without mutilating the envelop.

Having thus described my invention, I claim as new, and desire to secureby Letters Patentt- 1. An envelop consisting of a single piece ofmaterial having opposite side ilaps and opposite end ilups, a tongueextended from one of the end flaps, sealing tongues or flaps formed inthe opposite end flap, there being an opening at the base of each ofsaid sealing tongues or flaps through which the first-named tongue maypass. and the said side ilaps having slits through which the sea]- ingtongues or flaps pass.

An envelop consisting of a single piece of material having flaps atopposite sides of its body portion, and adapted to fold. one uponanother, each of said side flaps having two irregular slits to formtongues, an end flap having a tongue extended therefrom, a flap at theopposite end having sealing flaps or tongues provided with openings attheir base to receive the tongue on the first-named end flap. the saidsealing tongues being adapted to be turned downward after passingthrough the slits in the side flaps, while the tongue on the first-namedend flap may pass through the openings in said sealing tongues or flaps,the said irregular slits being so arranged that the tongues of one setof slits formed by cutting the same, will engage with one side of thesealing tongues, while the tongues formed by cutting the other set ofslits will engage with the opposite side of said sealing tongues.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY CLAUD MURPHY.

\Vitncsscs Janus R. STEWART, JOHN D. RAwLINGs.

